DE3762613D1 - Verfahren zur razemisierung von optisch aktiver chrysanthemsaeure oder ihres esters. - Google Patents

Verfahren zur razemisierung von optisch aktiver chrysanthemsaeure oder ihres esters.

Info

Publication number
DE3762613D1
DE3762613D1 DE8787307802T DE3762613T DE3762613D1 DE 3762613 D1 DE3762613 D1 DE 3762613D1 DE 8787307802 T DE8787307802 T DE 8787307802T DE 3762613 T DE3762613 T DE 3762613T DE 3762613 D1 DE3762613 D1 DE 3762613D1
Authority
DE
Germany
Prior art keywords
razemizing
ester
optically active
chrysanthemic acid
active chrysanthemic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE8787307802T
Other languages
English (en)
Inventor
Gohfu Suzukamo
Yoji Sakito
Masami Fukao
Koji Hagiya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP62028582A external-priority patent/JPH0647567B2/ja
Priority claimed from JP62028581A external-priority patent/JPH0688932B2/ja
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Application granted granted Critical
Publication of DE3762613D1 publication Critical patent/DE3762613D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials
DE8787307802T 1986-09-04 1987-09-03 Verfahren zur razemisierung von optisch aktiver chrysanthemsaeure oder ihres esters. Expired - Fee Related DE3762613D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP20876886 1986-09-04
JP62028582A JPH0647567B2 (ja) 1987-02-10 1987-02-10 光学活性第一菊酸類のラセミ化法
JP62028581A JPH0688932B2 (ja) 1987-02-10 1987-02-10 光学活性第一菊酸類のラセミ化方法

Publications (1)

Publication Number Publication Date
DE3762613D1 true DE3762613D1 (de) 1990-06-13

Family

ID=27286245

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787307802T Expired - Fee Related DE3762613D1 (de) 1986-09-04 1987-09-03 Verfahren zur razemisierung von optisch aktiver chrysanthemsaeure oder ihres esters.

Country Status (4)

Country Link
US (1) US4788323A (de)
EP (1) EP0261824B1 (de)
DE (1) DE3762613D1 (de)
HU (1) HU202171B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU203513B (en) * 1987-04-28 1991-08-28 Sumitomo Chemical Co Process for racemizing and trans-isomerizing optically active chrisanthemic acid derivatives
JPH0688933B2 (ja) * 1987-07-17 1994-11-09 住友化学工業株式会社 光学活性第一菊酸類のラセミ化法
EP0342843B1 (de) * 1988-05-19 1993-03-03 Sumitomo Chemical Company, Limited Verfahren zur Herstellung von racemischen Cyclopropancarbonsäurehalogeniden
DE68904244T2 (de) * 1988-05-26 1993-05-06 Sumitomo Chemical Co Verfahren zur herstellung von trans-2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropancarbonsaeureestern.
CN1231451C (zh) 2001-07-18 2005-12-14 住友化学工业株式会社 使旋光的乙烯基取代的环丙烷羧酸化合物外消旋的方法
US20040067192A1 (en) * 2002-10-07 2004-04-08 The Procter & Gamble Company Conversion of sodium bromide to anhydrous hydrobromic acid and sodium bisulfate
US6811763B2 (en) * 2002-10-07 2004-11-02 The Procter & Gamble Company Conversion of sodium bromide to anhydrous hydrobromic acid and sodium bisulfate

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282984A (en) * 1962-12-25 1966-11-01 Sumitomo Chemical Co Racemization of optically active transchrysanthemic acid
FR2038019A5 (de) * 1969-03-22 1970-12-31 Sumitomo Chemical Co
SE366022B (de) * 1969-03-24 1974-04-08 Sumitomo Chemical Co
JPS4931978A (de) * 1972-07-29 1974-03-23
JPS5337858B2 (de) * 1973-11-12 1978-10-12
JPS5735695B2 (de) * 1973-12-10 1982-07-30
JPS52144651A (en) * 1976-05-24 1977-12-02 Sumitomo Chem Co Ltd Racemization of optical active 2,2-dimethyl-3-(1-alkenyl)-cyclopropane-1-carboxylic acid
JPS57163341A (en) * 1981-03-30 1982-10-07 Sumitomo Chem Co Ltd Preparation of racemized cyclopropanecarboxylic acid derivative
US4473703A (en) * 1981-03-30 1984-09-25 Sumitomo Chemical Company, Limited Method of epimerization of alkyl chrysanthemate
EP0155765B1 (de) * 1984-02-22 1988-10-05 Sumitomo Chemical Company, Limited Verfahren zur Racemisierung der Chrysanthemsäure oder ihrer Ester
US4659864A (en) * 1984-06-15 1987-04-21 Sumitomo Chemical Company, Ltd. Method for racemization of chrysanthemic acid or its ester

Also Published As

Publication number Publication date
US4788323A (en) 1988-11-29
EP0261824A1 (de) 1988-03-30
HUT44994A (en) 1988-05-30
EP0261824B1 (de) 1990-05-09
HU202171B (en) 1991-02-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee